Enlightenment 0.18 Won't Suspend on Debian

I recently switched my Debian (Sid) laptop from Enlightenment 0.17 to 0.18. After the upgrade my laptop would no longer suspend. A minor but inconvenient problem for which there were many possible rabbit holes to run down and I ran down a few.

All of the leads were dead ends for me but one thing I kept reading was how Enlightenment hooks into systemd if it's installed. Installing systemd was on my ToDo list, so I opted to install it and see if that brought me any E18 suspend love.